AlexR Posted October 14, 2011 Report Posted October 14, 2011 Folks, I am in the process of installing a non-WAAS Garmin GNS 430 in the right side stack of my Mooney (1970 M20C) as my number 2 Nav/Com. I know that a WAAS 430 would require an annuicator panel over by the pilot if the unit was that far to the right, but is that also the case with the non-WAAS unit installed under 337/field approval? I know the install criteria for the WAAS units was more strict. Anyone that have one to the right, would really appreciate your feedback. Thanks! -Alex ps. it is going to go where the transponder is in the picture attached below.
KSMooniac Posted October 14, 2011 Report Posted October 14, 2011 Why not put it below your existing 430? Is it a WAAS unit?
MARZ Posted October 14, 2011 Report Posted October 14, 2011 Quote: KSMooniac Why not put it below your existing 430? Is it a WAAS unit?
AlexR Posted October 14, 2011 Author Report Posted October 14, 2011 Great minds think alike! A GMA 340, GNS 530, and a GTX 327 are going into the main stack as we speak. The 430 is going into the right side as there is no more room. Building the harness this weekend and not sure if I need an annuiciator...Most say no for a non-waas like I have...but want to make sure...thanks.
AndyFromCB Posted October 14, 2011 Report Posted October 14, 2011 How do you like your RC Allen 2600? Mine has been flawless.
AlexR Posted October 14, 2011 Author Report Posted October 14, 2011 Quote: maropers +1 - do the garmin and then get an audio panel that would combine the markers and intercom, put that where your markers are now, move your current garmin up to about were the top of your audio is now, that shift and the king removal should be enough for your new garmin. locatiion priority by use
takair Posted October 14, 2011 Report Posted October 14, 2011 Installed many 430s in a prior life, pre WAAS. The guidance says that the annuciation for an IFR GPS has to be in the pilot's field of view. This is rather subjective and will vary from FSDO to FSDO and installer to installer. Many 430s have been installed in Barons and Bonanzas in the right hand canted radio rack. Most were allowed without external annunciation, but some were not (FSDO dependent...pre STC...field approvals). Basically, if you are on an approach, hand flying, will you catch the blinking annunciation in the right hand panel in time. It seemed to be ok on those Beech aircraft, but it may be a little harder to sell on the uncanted Mooney panel.
DaV8or Posted October 14, 2011 Report Posted October 14, 2011 I'm not even sure why you're doing it. Does a second (actually 3rd if you count your 496... no wait, probably 4th with the iPad) GPS really buy you that much? The King radio is a great back up. If it's crapping out, maybe it's easier to just get an SL-30. I love mine. I don't have a problem with a second 430, it just seems like you might be trying to force it in a tight space and spend more in the process for any great benifit. Does you home field only have GPS approaches? Maybe that's it.
carusoam Posted October 14, 2011 Report Posted October 14, 2011 Alex, My non waas kln90b has the annunciators on the panel. It is more about certification for approach than it is waas vs non waas. I would suppose you have a good argument that you would not need the annunciators with a clear view of a high mounted graphical GPS. Low mounted monochrome will not reliably catch your attention. In fact, I am not really impressed with the annunciators either, they are not strobe lights. They can be easily missed on sunny days. They are a throwback to when GPS was new. Do you have the matching blue light too? For a second GPS installation, would it be dual annunciators, tied into the same annunciators, or no requirement for a second set? Best regards, -a-
carusoam Posted October 14, 2011 Report Posted October 14, 2011 Alex, What kind of flying do you do? Your photo shows backups to everything accept the transponder. Best regards, -a-
tony Posted October 14, 2011 Report Posted October 14, 2011 I think it makes sense. The cost of a used non waas 430 is about the same price as an SL-30. He gets the com and nav radio and the GPS receiver that can give situational awareness is a bonus. That GPS is not his primary nav source, its just there as a back up, if required.
AlexR Posted October 15, 2011 Author Report Posted October 15, 2011 Quote: carusoam Alex, What kind of flying do you do? Your photo shows backups to everything accept the transponder. Best regards, -a-
AlexR Posted October 15, 2011 Author Report Posted October 15, 2011 Quote: astelmaszek How do you like your RC Allen 2600? Mine has been flawless.
Cruiser Posted October 15, 2011 Report Posted October 15, 2011 If you intend to use it in IFR, NO. IF it is VFR and you placard it as "VFR only" on the panel then YES. here is more info. http://www.avweb.com/news/avionics/181617-1.html
AlexR Posted October 15, 2011 Author Report Posted October 15, 2011 Guys, Thanks for the feedback. I understand the difference between a VFR and IFR install of a GPS. My question relates more to the following: I have seen plenty of folks on this forum own Mooneys with GNS 430s in the right stack. A WAAS install requires that the left side of the unit be 11.8 inches from the cener of the AI in order to avoid remote annuciation. The non-WAAS version of the install manual was not as precise and simply says the unit has to be in the pilot's field of view. As such, if anybody has a non-WAAS 430 on the right, IFR certified, without annuciators...pls contact me as I would like to get an idea of how it was written up/justified in the 337/field approval. Many thanks. ps. for those that really like the KX-155s for back up, I will be putting mine up for sale very soon...it works great and comes with a KI-209 indicator...more to follow in the for sale forum.
Awful_Charlie Posted October 15, 2011 Report Posted October 15, 2011 I'd have to go over to the hangar to dig all the paperwork out, but this may be superfluous as an Aspen is used for the annunciation on both my Nav/Com/GPS#1 in the middle and for the 430 (non WAAS) as #2 in the right hand stack
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